Carbureter.



F. W. TUERK.

GABBURETBR.

APPLIoATmN FILED MAY 15. 1909.

Patented Ju1y5, 1910.

2 SHEETS-BHET 2.

F. W. TUERK.

GARBUEBTEB.

APPLICATION FILED Mmm. 1909.

Patented July 5 WW.

2 SHEETS-SHEET 1.

UNITED sTATns PATEN-y FREDERICK W. TUERK, 0F CHICAGO, ILLINOIS, ASSIGNOR TO THE TUERK NOVELTY COMPANY, 0F CHICAGO, ILLINOIS, A CORPORATION 0F SOUTH DAKOTA.

CARBURETER.

Specification of Letters Patent.

Application led May 15, 1909. Serial No. 496,162,

To all whom it may concern:

Beit known that I, FREDERICK W. TUERK, a citizenof the United States, and a resident of the city of Chicago, Cook county, Illinois, have invented certain new and useful Improvements in Carbureters; and I do hereby declare that the following is a full, clear, and exact description of thesame, reference b'eing had to the accompanying drawings, and to the letters of reference marked thereon, which form apart of this specification.

This invention relates to improvements in carbureters of that class adapted to afford the'mixture of air and hydro-carbon vapor fuels in explosive or internal combustlon engines.

Of the various carbureters that are now in commercial use, difficulty is experienced in aording complete vaporization of the hydro-carbon fluid and thorough mixture of the requisite quantity of atmospheric air therewith to insure as nearly as may be the condition of xed gases and the more nearly this may be approximated, the less ditliculty is encountered in cooling the engine, and of course, much less trouble is encountered because of faulty 'or imperfect combustion.

The object of this invention is'to aord first, a carbureter in which the supply of the hydro-carbonnluid may be perfectly graduated by means of the motor thereon and also in which the requisite su ply of air is automatically controlled to agord as nearly as may be a perfect explosive mixture.

It is an important object of the invention to afford in connection therewith means for thoroughly mixing the hydro-carbon vapor with atmospheric air and delivering the same to the motor.

It is also an object of the invention to afford a carbureter in which the throttle valve may be set or arranged with reference to the remainingv portions of the carbureter to render the same more convenient for access than has frequently been the case.

Finally, it is an object of the invention to afford an exceedingly cheap, simple and durable device of the class described, of few parts and thoroughly automatic in operation in all its parts.

The invention consists in the matters herevmy invention. Fig. 2 is a section taken on line 2 2 of Fig. 1. Fig. 3 is a section taken on line 3 3 of Fig. 1. Fig. 4 is a section taken on line 4-4 of Fig. 1. Fig. 5 is a fragmentary' view in elevation of the indicating adjusting head for the inlet valve. Fig. 6 is a top plan view of a device embo ying my invention. Fig.- 7 is a fragmentary section taken on line 7-7 of Fig. 1. Fig. 8 is a side elevation of the outlet end of the carbureter showing the throttle levers in elevation. Fig. 9 is a fragmentary detail illustrating a modification of the float feed chamber and mechanism and valve.

As shown in the drawings? Said carbureter comprises a float feed chamber or reservoir indicated by A, integrally connected with the mixing chamber B. Said float a, and side walls a', and a cover a2, having screw threaded engagement with the side walls. Below the bottom a, is provided. an inlet chamber A, for the gasolene. AFor this purpose, as shown, downwardlyl directed integral walls a3, are provided on thebottom a, of the float feed chamber and threaded therein to close thesame is the close fitting bottom a4, at the center of which is connected feed pipes a5. As shown also, a strainer a, is secured on said bottom, and comprises, as shown, a plurality of plates of metal connected together and provided with apertures therethrough covered by wire gauze a7 to prevent any impurities or dirt 11i-the asolene finding its way into the ioat feed c am- Within the oat feed chamber is provided a float member of cork or constructed hollow of metal, and indicated by C. Threaded throu h the same is a spindle or stem c. The lower end of said spindle extends through a relatively small a erture in the bottom of the float feed cham r and which flares outwardly on the under side and rigidly secured on the lower end of said stem 1s a ball c', which serves as the valve closure. The upper end of said stem,` as shown in Fig. 1, extends yu Wardly into .a

screw threaded nipple a", at e center ofthe Patented July 5, 1993.10. I

Fig. 10 is a section on line 10-10 of Fig. 9.!

feed chamber, as shown, comprises a bottoml cover, and which is closed by a centrally apertured screw ca as, thus affording air inlet to the float feedy chamber above the float.

Near the bottom of the float feed chamber is provided a bore l), which communicates with the passa e b leading into the mixing chamber B, an as shown, threaded into the inner wall of said mixing chamber and communicating in said passage, is a sleeve b2, which extends approximately to the middle of said mixing chamber and there receives the inwardly directed, slightly tapered end b3, of the inlet valve closure, which, as Shown, is threaded through the side of the mixing chamber and is provided on its outer end with a graduated wheel B', notched about its periphery and ada ted to be engaged in any of said notches y a spring detent b5, and whereby said valve closure may be held in any of its adjusted positions.

Extending through the mixing chamber below the valve, is a threaded rod or bolt D, and sup orted thereon is a cup d, positioned vdirectly eneath the discharge from the valve and provided around its periphery at the bottom with a plurality of apertures to permit the escape of the hydro-carbon fluid therefrom, and supported on the bottom of said cup is a cage D', which may be constructed of wires, which are somewhat spherically and downwardly curved to distribute the inwardly flowing gasolene 0r hydrocarbon over as large a vaporizing area as possible within the mixing chamber. Said cage may, of course, be constructed of stamped metal, if desired, to afford a plurality of rods or surfaces down which the hydro-carbon flows as the air passes inwardly therethrough.

At the lower or outlet end of the mixing chamber is provided a throttle valve. This is shown as the ordinary butterfly valve comprisin plates of metal riveted or otherwise secure together upon a stem e, and affording the closure E. Said stem, as shown, extends inwardly through suitable diametrically arranged apertures in the lower end 4of the mixing chamber, and as shown, said stem on its outer end is provided with a bell crank e', whereby the throttle valve may be actuated by any suit-able connection.

Conveniently and preferably, the lower or outlet end of the mixing chamber is provided with two sets of apertures arranged at right angles with each otherto enable the stem or pivot for the butterfly valve to be adjusted most conveniently with reference to the installation of the carbureter in use. The apertures not required are closed by screw lugs e, said screw plugs being adapted to t within any of said apertures when the closure, stem or pintle is engaged in the others.

The air valve may be constructed in a variety of ways. Conveniently, however, a spider F, is threaded upon the upper open end of the mixing chamber and is flanged downwardly at its periphery and screw threaded to receive the complementally threaded lower edge of the cap or casing F. As shown, a cylindric sleeve f, is provided integral with said spider F, at the axis thereof and is of a length to project above the open end of the rcasing and is provided thereon with a centrally apertured screw cap f, and slidable on said sleeve is an air valve closure f3, which seats to close the aperture in the casing F', under the action of a spring f4, which engages on said spider and underneath the closure acts to force the same upwardly against the intake of the en gine.

In the construction shown in Fig. l, the gasolene supply is received from below the float feed chamber. 'lhe inlet may as conveniently be received from above the saine, and for this purpose, as shown in Figs. 9 and l0, the cover A2, for the float feed chamber, may be provided with a central axially apertured boss thereon, internally threaded and in which is threaded an upwardly extending sleeve G, provided in its bottom with a relatively small aperture, which flares downwardlyto afford a seat for Va. ball g, carried on the stem g', of the float G. As shown, an apertured screw cap g2, fitted into the upper end of the sleeve G, and also said sleeve G, is provided with a laterally apertured branch g3, adapted to afford connection with the gasolene supply pipe, thus discharging the gasolene from the supply pipe directly into the float feed chamber from above. All of the other parts of the construction may be as before described.

The operation is as follows: With either construction of the float feed chamber the ball valve under the action of the float and because of the buoyancy'of the float, serves to perfectly regulate the supply of gasolene in the ilo-at feed chamber to the needs of the motor, always maintaining a sufcient level of gasolene in the float feed chainber to supply the combustion, but obviously preventing any excess finding its way there into. However, if desired, an orifice may be provided at the normal level of the liquid in the float feed chamber, and may be closed by means of a screw' g?, to enable the contents of the float feed chamber to be discharged to normal level should it by any possibility flood, as, for instance, by parts sticking of the valve. This, however, can never occur except when the ball valve has practically worn out, and, owing to the construction the ball may be renewed at any time, thus enabling a carbureter to work as satisfactorily in this respect as before. As the gasolene or other explosive fluid is lll drawn through the bore 5, and into the sleeve b2, of the valve, it is discharged in amounts requisite for the combustion into the cup d, and at the top of the mixing cage, from whence it escapes from the apertures in the' bottom of the cup and flows down over the mixing cage subjected in it-s downward flow to the action of the indrawn atmospheric air, which passes through the cage and to the motor carrying the perfectly vaporized hydro-carbon thoroughly mixed therewith.

Y Should it be desired to graduate the action of the valve to secure a greater or a less flow of the gasolene or other fluid, this may be accomplished by the graduated head B', of the valve closure, and jwhen adjusted the spring detent b5, will hold the valve at all times in adjusted position.

`Of course, under normal action ofy the carbureter, the air valve is drawn automatically inward by the suction of the intake of the motor.- However, a sufficient supply of air may be provided at any time through the apertured cap for the tubular stem of the air valve to maintain the combustion at a less rate of speed. l

Of course, itis quite immaterial if the flow of the hydro-carbon to the floatfeed chamber be from above or from below. v In any event, the float acts to perfectly regulate the supply, and as the same is discharged to the mixing chamber, the float again falls to permit an inflow for the next charge.

While I have described my invention with reference to a spherical float valve, it is not to be understood that this type of float valve is indispensable to the operation of this device, orthat I purpose limiting myself thereby.` Instead, this and many other details of the construction may be varied without departing from the principles of my invention. I therefore do not purpose l1miting this application for patent otherwise than necessitated by the prior art.

I claim as my invention:

l. The combination with afloat feed chamber connected with a source of hydro-carbon fluid supply, of a mixing chamber regulably connected therewith through a suitable part, a cup in the mixing chamber to receive the discharge from the float feed chamber, and a mixing cage supported below the cup comprising .a plurality of wires spherically curved upon which the cup discharges through apertures in its bottom.

2. The combination with a float feed chamber connected with a source of hydro-carbon fluid supply, of a mixing chamber regulably connected therewith, a cu in the mixing chamber positioned to recelve the discharge from the float feed chamber, anda mixing cage supported below the cup comprising a member stamped to provide flat bars wh1ch are curved to afford large surface on which -bathed by the flow of the hydro-carbon the cup discharges through apertures in its bottom.

3. The combination with a float feed chamber connected with a source of hydro-carbon fluid supply, of a mixing chalnber regulably communicating therewith, a cup' centrally positioned inthe mixing chamber to receive the discharge from the float feed chamber, a mixing cage supported below the cup and to which the latter discharges through apertures in its bottom, said cage affording down wardly directed curved bars adapted to afford a large vaporizing area for the hydrocarbon fluid in the path of air drawn through the mixing cage. 80

4. In a device of the class described al cup having apertures in its bottom, and arranged to receive the flow from the hydro-carbon feed chamber, a mixing cage of flat metallic bars curved somewhat spherically and secured to the cup to receive the flow of the hydrocarbon thereon from the cup, said device having an air inlet orifice above and a discharge orifice below the mixing cage.

5. In a device of the class described the combination with a float feed chamber and a mixing chamber, of a passage connecting the same, an inlet valve controlling the said passage, a threaded shaft extending trans versely through the mixing chamber, a cup threaded on said shaft in the mixing chamber to receive the hydro-carbon from said passage, and a globular mixing cage supported below said cup and adapted to be through apertures in the bottom of the cup, said cage being ldisposed between the air inlet aperture and the outlet'for the mixing chamber.

6. A carbureter comprising a feed chamber, a mixing chamber communicating therewith, a cup in the mixing chamber to receive the liquid therein from the feed chamber and finely apertured to spray the liquid therefrom, a mixing member' comprising in- 110 dependent metallic members on which the sprayed liquid falls, a sleeve opening into the mixing chamber above the mixing member,

a cap for the mixing chamber having a large opening around the sleeve and a spring pressed closure for closing the opening around the sleeve.

7. In a device of the class described a mixingchamber ported to connect with the bottom of the float feed chamber, and a globul-ar mixing cage therein constructed of a plate stamped to` provide narrow flat bars with slits therebetween and said bars curved to provide a surface over which the hydrocarbon spreads, said cage being in the path of the air intake. Y

8. In a device of the class described a mixin chamber ported to connect with the float eed chamber, a globular mixing ca e in the mixing chamber in the path of the air intake, an inlet ipe extending transversely In testimony whereof I have hereunto subinto the mixin e amber, a closure extending scribed my name in the presence of two subtransversely o the chamber adapted to conseribing Witnesses.

trol the admission through the inlet pipe, a FREDERICK W. TUERK. stem extending parallel of the inlet pipe and Witnesses:

a cup threaded therein adapted to spray the K. E.. HANNAH,

hydro-carbon Huid upon the mixing cage. LAWRENCE REIBSTEIN. 

